Simulation reveals how smoking and vaping damage lungs over time

A simulation shows smoking and vaping damage lungs, with smoking causing immediate airway dryness and tar buildup. Vaping introduces an aerosol causing throat irritation and chest tightness, while both habits lead to inflammation and mucus buildup over weeks. Years of smoking increase risks of lung disease, cancer, and heart disease; vaping is considered less harmful than smoking in the short to medium term.